Bandwidth requirement per user in NAV 2013 R2

Can anyone please suggest the bandwidth requirement per user for NAV 2013 R2?

/Anup

As far as I know the only official documentation about it was release for NAV 2009 R2 but nothing similar was published for NAV 2013: http://blogs.msdn.com/b/nav/archive/2011/05/19/rtc-over-wan-what-is-the-required-bandwidth-for-my-workload.aspx